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TcpStatistics.ConnectionsInitiated Property

Gets the number of Transmission Control Protocol (TCP) connection requests made by clients.

Namespace:  System.Net.NetworkInformation
Assembly:  System (in System.dll)
public abstract long ConnectionsInitiated { get; }

Property Value

Type: System.Int64
An Int64 value that specifies the total number of TCP connections initiated by clients.

IETF RFC 2012 formally defines this value as, "The number of times TCP connections have made a direct transition to the SYN-SENT state from the CLOSED state."

The following code example displays connection information.

public static void ShowTcpConnectionStatistics()
{
    IPGlobalProperties properties = IPGlobalProperties.GetIPGlobalProperties();
    TcpStatistics tcpstat = properties.GetTcpIPv4Statistics();

    Console.WriteLine("  Connection Data:");
    Console.WriteLine("      Current  ............................ : {0}", 
        tcpstat.CurrentConnections);
    Console.WriteLine("      Cumulative .......................... : {0}", 
        tcpstat.CumulativeConnections);
    Console.WriteLine("      Initiated ........................... : {0}", 
        tcpstat.ConnectionsInitiated);
    Console.WriteLine("      Accepted ............................ : {0}", 
        tcpstat.ConnectionsAccepted);
    Console.WriteLine("      Failed Attempts ..................... : {0}", 
        tcpstat.FailedConnectionAttempts);
    Console.WriteLine("      Reset ............................... : {0}", 
        tcpstat.ResetConnections);
    Console.WriteLine("      Errors .............................. : {0}", 
        tcpstat.ErrorsReceived);
    Console.WriteLine();    
}
void ShowTcpConnectionStatistics()
{
    IPGlobalProperties* properties = IPGlobalProperties::GetIPGlobalProperties();
    TcpStatistics* tcpstat = properties->GetTcpIPv4Statistics();

    Console::WriteLine(S"  Connection Data:");
    Console::WriteLine(S"      Current  ............................ : {0}", __box(tcpstat->CurrentConnections));
    Console::WriteLine(S"      Cumulative .......................... : {0}", __box(tcpstat->CumulativeConnections));
    Console::WriteLine(S"      Initiated ........................... : {0}", __box(tcpstat->ConnectionsInitiated));
    Console::WriteLine(S"      Accepted ............................ : {0}", __box(tcpstat->ConnectionsAccepted));
    Console::WriteLine(S"      Failed Attempts ..................... : {0}", __box(tcpstat->FailedConnectionAttempts));
    Console::WriteLine(S"      Reset ............................... : {0}", __box(tcpstat->ResetConnections));
    Console::WriteLine(S"      Errors .............................. : {0}", __box(tcpstat->ErrorsReceived));
}

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0
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